// var s1:Student = new Student()
// 类实现接口 使用关键字 implements
var Stu = /** @class */ (function () {
    function Stu() {
        this.title = "ccc";
    }
    Stu.prototype.print = function (arg) {
        throw new Error("Method not implemented.");
    };
    Stu.prototype.show = function (arg) {
        throw new Error("Method not implemented.");
    };
    return Stu;
}());
var stu1 = new Stu();
stu1.show();
